File indexing completed on 2024-05-19 05:54:09

 /*
     SPDX-FileCopyrightText: 2020-2020 Gustavo Carneiro <gcarneiroa@hotmail.com>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "ColorFilterHotSpot.h"
 
 #include <QApplication>
 #include <QBuffer>
 #include <QMouseEvent>
 #include <QPainter>
 #include <QPixmap>
 #include <QTimer>
 #include <QToolTip>
 
 #include "KonsoleSettings.h"
 
 using namespace Konsole;
 
 bool ColorFilterHotSpot::_canGenerateTooltip = false;
 
 ColorFilterHotSpot::ColorFilterHotSpot(int startLine, int startColumn, int endLine, int endColumn, const QStringList &capturedTexts, const QColor &color)
     : RegExpFilterHotSpot(startLine, startColumn, endLine, endColumn, capturedTexts)
     , _color(color)
 {
     setType(Color);
 }
 
 void ColorFilterHotSpot::mouseEnterEvent(TerminalDisplay *td, QMouseEvent *ev)
 {
     HotSpot::mouseEnterEvent(td, ev);
     _toolPos = ev->globalPosition().toPoint();
     _canGenerateTooltip = true;
 
     QTimer::singleShot(100, this, [&] {
         tooltipRequested();
     });
 }
 
 void ColorFilterHotSpot::mouseLeaveEvent(TerminalDisplay *td, QMouseEvent *ev)
 {
     HotSpot::mouseLeaveEvent(td, ev);
     _canGenerateTooltip = false;
     QToolTip::hideText();
 }
 
 void ColorFilterHotSpot::tooltipRequested()
 {
     if (!_canGenerateTooltip) {
         return;
     }
 
     Q_ASSERT(_color.isValid());
 
     int sideUnit = 10;
     int sideLength = sideUnit * sideUnit;
     QRect square(0, 0, sideLength, sideLength);
 
     QPixmap pix(square.size());
     QPainter paint(&pix);
 
     // Add a nice checkerboard pattern for translucent colors.
     if (_color.alpha() < 255) {
         // Base background
         paint.fillRect(square, Qt::lightGray);
 
         // Checkerboard pattern
         QBrush brush(Qt::white, Qt::Dense4Pattern);
         brush.setTransform(QTransform::fromScale(sideUnit, sideUnit));
         paint.setBrush(brush);
         paint.drawRect(square);
     }
 
     paint.fillRect(square, _color);
 
     QByteArray data;
     QBuffer buffer(&data);
     pix.save(&buffer, "PNG");
 
     const auto tooltipString = QStringLiteral("<img src='data:image/png;base64, %0'>").arg(QString::fromLocal8Bit(data.toBase64()));
 
     QPoint tooltipPosition = QPoint(_toolPos.x(), _toolPos.y());
     QToolTip::showText(tooltipPosition, tooltipString, qApp->focusWidget());
 }